Masa is Makoto's best friend and regular companion during their repetitive nights at the bowling alley and Ikebukuro West Gate Park. His shared routine with Makoto represents their stable world before Shun, Rika, and Hikaru enter their lives and the murder investigation pulls Makoto into danger.
Cheerful military investigator and close friend of Mustang, whose murder drives the plot forward.
Tera is a beloved member of the Musashino Saru tribe and Kai’s close friend. Mera’s failed attempt to kill Kai accidentally kills Tera instead. His death becomes a turning point in the conflict, giving Tokyo’s rival tribes a shared reason to unite against Mera and his allies.
Military investigator and family man, allies with Edward against conspiracies.
Tobio is a manzai comedian who has performed for ten years with Tamotsu. When Tamotsu quits amid declining popularity and mounting debts, Tobio tries to drown his troubles in alcohol and wakes up in a detention center. There he meets Ryuhei and tries to recruit him as a partner for a new comedy duo.
A familiar figure in the Cats' community and one of the story's recurring characters.
A dedicated Japan Coast Guard rescue diver and professional colleague of Daisuke. Demonstrates resilience and teamwork during extreme operations, notably participating in the Regalia gas plant rescue mission alongside Daisuke.
A classmate who frequently interacts with the main social circle. He serves as a background peer that helps ground the school setting and expands the ensemble dynamic.
Fellow detective or investigator, collaborates on complex criminal cases.
A secondary character with minimal narrative focus in the provided plot summary.
Ryuta Sato has 70 screen credits in a career dating back to 1997. Their work spans 7 cinematic universes — most prominently Fullmetal Alchemist Live Action with 2 titles. Signature works include Tokyo Water Police, The SanMei-sama: 5 seconds before they go wow., Slapstick Brothers. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 7 universes
Related entry on Wikidata (Q872087), public domain (CC0).
